This study sought to assess the effects of a salt substitute (62.5% NaCl, 25% KCl, and 12.5% flavorings) on incidence of hypertension and hypotension among older adults with normal blood pressure.

Lol so the salt substitute is still nearly 2/3 salt. This study sounds like bullshit that wouldn't be replicated in the real world, participants knew they might be getting reduced salt food and thus were more likely to accept it. In day to day life people would still generally prefer the saltier foods.